!function(t){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var e;"undefined"!=typeof window?e=window:"undefined"!=typeof global?e=global:"undefined"!=typeof self&&(e=self),e.eio=t()}}(function(){var t;return function t(e,r,n){function o(s,a){if(!r[s]){if(!e[s]){var c="function"==typeof require&&require;if(!a&&c)return c(s,!0);if(i)return i(s,!0);var p=new Error("Cannot find module '"+s+"'");throw p.code="MODULE_NOT_FOUND",p}var u=r[s]={exports:{}};e[s][0].call(u.exports,function(t){var r=e[s][1][t];return o(r||t)},u,u.exports,t,e,r,n)}return r[s].exports}for(var i="function"==typeof require&&require,s=0;s<n.length;s++)o(n[s]);return o}({1:[function(t,e,r){e.exports=t("./lib/")},{"./lib/":2}],2:[function(t,e,r){e.exports=t("./socket"),e.exports.parser=t("engine.io-parser")},{"./socket":3,"engine.io-parser":17}],3:[function(t,e,r){(function(r){function n(t,e){if(!(this instanceof n))return new n(t,e);if(e=e||{},t&&"object"==typeof t&&(e=t,t=null),t&&(t=u(t),e.host=t.host,e.secure="https"==t.protocol||"wss"==t.protocol,e.port=t.port,t.query&&(e.query=t.query)),this.secure=null!=e.secure?e.secure:r.location&&"https:"==location.protocol,e.host){var o=e.host.split(":");e.hostname=o.shift(),o.length?e.port=o.pop():e.port||(e.port=this.secure?"443":"80")}this.agent=e.agent||!1,this.hostname=e.hostname||(r.location?location.hostname:"localhost"),this.port=e.port||(r.location&&location.port?location.port:this.secure?443:80),this.query=e.query||{},"string"==typeof this.query&&(this.query=f.decode(this.query)),this.upgrade=!1!==e.upgrade,this.path=(e.path||"/engine.io").replace(/\/$/,"")+"/",this.forceJSONP=!!e.forceJSONP,this.jsonp=!1!==e.jsonp,this.forceBase64=!!e.forceBase64,this.enablesXDR=!!e.enablesXDR,this.timestampParam=e.timestampParam||"t",this.timestampRequests=e.timestampRequests,this.transports=e.transports||["polling","websocket"],this.readyState="",this.writeBuffer=[],this.callbackBuffer=[],this.policyPort=e.policyPort||843,this.rememberUpgrade=e.rememberUpgrade||!1,this.binaryType=null,this.onlyBinaryUpgrades=e.onlyBinaryUpgrades,this.pfx=e.pfx||null,this.key=e.key||null,this.passphrase=e.passphrase||null,this.cert=e.cert||null,this.ca=e.ca||null,this.ciphers=e.ciphers||null,this.rejectUnauthorized=e.rejectUnauthorized||null,this.open()}function o(t){var e={};for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r]);return e}var i=t("./transports"),s=t("component-emitter"),a=t("debug")("engine.io-client:socket"),c=t("indexof"),p=t("engine.io-parser"),u=t("parseuri"),h=t("parsejson"),f=t("parseqs");e.exports=n,n.priorWebsocketSuccess=!1,s(n.prototype),n.protocol=p.protocol,n.Socket=n,n.Transport=t("./transport"),n.transports=t("./transports"),n.parser=t("engine.io-parser"),n.prototype.createTransport=function(t){a('creating transport "%s"',t);var e=o(this.query);return e.EIO=p.protocol,e.transport=t,this.id&&(e.sid=this.id),new i[t]({agent:this.agent,hostname:this.hostname,port:this.port,secure:this.secure,path:this.path,query:e,forceJSONP:this.forceJSONP,jsonp:this.jsonp,forceBase64:this.forceBase64,enablesXDR:this.enablesXDR,timestampRequests:this.timestampRequests,timestampParam:this.timestampParam,policyPort:this.policyPort,socket:this,pfx:this.pfx,key:this.key,passphrase:this.passphrase,cert:this.cert,ca:this.ca,ciphers:this.ciphers,rejectUnauthorized:this.rejectUnauthorized})},n.prototype.open=function(){var t;if(this.rememberUpgrade&&n.priorWebsocketSuccess&&-1!=this.transports.indexOf("websocket"))t="websocket";else{if(0==this.transports.length){var e=this;return void setTimeout(function(){e.emit("error","No transports available")},0)}t=this.transports[0]}this.readyState="opening";var t;try{t=this.createTransport(t)}catch(t){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)},n.prototype.setTransport=function(t){a("setting transport %s",t.name);var e=this;this.transport&&(a("clearing existing transport %s",this.transport.name),this.transport.removeAllListeners()),this.transport=t,t.on("drain",function(){e.onDrain()}).on("packet",function(t){e.onPacket(t)}).on("error",function(t){e.onError(t)}).on("close",function(){e.onClose("transport close")})},n.prototype.probe=function(t){function e(){if(f.onlyBinaryUpgrades){var e=!this.supportsBinary&&f.transport.supportsBinary;h=h||e}h||(a('probe transport "%s" opened',t),u.send([{type:"ping",data:"probe"}]),u.once("packet",function(e){if(!h)if("pong"==e.type&&"probe"==e.data){if(a('probe transport "%s" pong',t),f.upgrading=!0,f.emit("upgrading",u),!u)return;n.priorWebsocketSuccess="websocket"==u.name,a('pausing current transport "%s"',f.transport.name),f.transport.pause(function(){h||"closed"!=f.readyState&&(a("changing transport and sending upgrade packet"),p(),f.setTransport(u),u.send([{type:"upgrade"}]),f.emit("upgrade",u),u=null,f.upgrading=!1,f.flush())})}else{a('probe transport "%s" failed',t);var r=new Error("probe error");r.transport=u.name,f.emit("upgradeError",r)}}))}function r(){h||(h=!0,p(),u.close(),u=null)}function o(e){var n=new Error("probe error: "+e);n.transport=u.name,r(),a('probe transport "%s" failed because of error: %s',t,e),f.emit("upgradeError",n)}function i(){o("transport closed")}function s(){o("socket closed")}function c(t){u&&t.name!=u.name&&(a('"%s" works - aborting "%s"',t.name,u.name),r())}function p(){u.removeListener("open",e),u.removeListener("error",o),u.removeListener("close",i),f.removeListener("close",s),f.removeListener("upgrading",c)}a('probing transport "%s"',t);var u=this.createTransport(t,{probe:1}),h=!1,f=this;n.priorWebsocketSuccess=!1,u.once("open",e),u.once("error",o),u.once("close",i),this.once("close",s),this.once("upgrading",c),u.open()},n.prototype.onOpen=function(){if(a("socket open"),this.readyState="open",n.priorWebsocketSuccess="websocket"==this.transport.name,this.emit("open"),this.flush(),"open"==this.readyState&&this.upgrade&&this.transport.pause){a("starting upgrade probes");for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},n.prototype.onPacket=function(t){if("opening"==this.readyState||"open"==this.readyState)switch(a('socket receive: type "%s", data "%s"',t.type,t.data),this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(h(t.data));break;case"pong":this.setPing();break;case"error":var e=new Error("server error");e.code=t.data,this.emit("error",e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}else a('packet received with socket readyState "%s"',this.readyState)},n.prototype.onHandshake=function(t){this.emit("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.onOpen(),"closed"!=this.readyState&&(this.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},n.prototype.onHeartbeat=function(t){clearTimeout(this.pingTimeoutTimer);var e=this;e.pingTimeoutTimer=setTimeout(function(){"closed"!=e.readyState&&e.onClose("ping timeout")},t||e.pingInterval+e.pingTimeout)},n.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){a("writing ping packet - expecting pong within %sms",t.pingTimeout),t.ping(),t.onHeartbeat(t.pingTimeout)},t.pingInterval)},n.prototype.ping=function(){this.sendPacket("ping")},n.prototype.onDrain=function(){for(var t=0;t<this.prevBufferLen;t++)this.callbackBuffer[t]&&this.callbackBuffer[t]();this.writeBuffer.splice(0,this.prevBufferLen),this.callbackBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0==this.writeBuffer.length?this.emit("drain"):this.flush()},n.prototype.flush=function(){"closed"!=this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(a("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},n.prototype.write=n.prototype.send=function(t,e){return this.sendPacket("message",t,e),this},n.prototype.sendPacket=function(t,e,r){if("closing"!=this.readyState&&"closed"!=this.readyState){var n={type:t,data:e};this.emit("packetCreate",n),this.writeBuffer.push(n),this.callbackBuffer.push(r),this.flush()}},n.prototype.close=function(){function t(){n.onClose("forced close"),a("socket closing - telling transport to close"),n.transport.close()}function e(){n.removeListener("upgrade",e),n.removeListener("upgradeError",e),t()}function r(){n.once("upgrade",e),n.once("upgradeError",e)}if("opening"==this.readyState||"open"==this.readyState){this.readyState="closing";var n=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?r():t()}):this.upgrading?r():t()}return this},n.prototype.onError=function(t){a("socket error %j",t),n.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},n.prototype.onClose=function(t,e){if("opening"==this.readyState||"open"==this.readyState||"closing"==this.readyState){a('socket close with reason: "%s"',t);var r=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),setTimeout(function(){r.writeBuffer=[],r.callbackBuffer=[],r.prevBufferLen=0},0),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e)}},n.prototype.filterUpgrades=function(t){for(var e=[],r=0,n=t.length;r<n;r++)~c(this.transports,t[r])&&e.push(t[r]);return e}}).call(this,"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./transport":4,"./transports":5,"component-emitter":12,debug:14,"engine.io-parser":17,indexof:27,parsejson:28,parseqs:29,parseuri:30}],4:[function(t,e,r){function n(t){this.path=t.path,this.hostname=t.hostname,this.port=t.port,this.secure=t.secure,this.query=t.query,this.timestampParam=t.timestampParam,this.timestampRequests=t.timestampRequests,this.readyState="",this.agent=t.agent||!1,this.socket=t.socket,this.enablesXDR=t.enablesXDR,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized}var o=t("engine.io-parser"),i=t("component-emitter");e.exports=n,i(n.prototype),n.timestamps=0,n.prototype.onError=function(t,e){var r=new Error(t);return r.type="TransportError",r.description=e,this.emit("error",r),this},n.prototype.open=function(){return"closed"!=this.readyState&&""!=this.readyState||(this.readyState="opening",this.doOpen()),this},n.prototype.close=function(){return"opening"!=this.readyState&&"open"!=this.readyState||(this.doClose(),this.onClose()),this},n.prototype.send=function(t){if("open"!=this.readyState)throw new Error("Transport not open");this.write(t)},n.prototype.onOpen=function(){this.readyState="open",this.writable=!0,this.emit("open")},n.prototype.onData=function(t){var e=o.decodePacket(t,this.socket.binaryType);this.onPacket(e)},n.prototype.onPacket=function(t){this.emit("packet",t)},n.prototype.onClose=function(){this.readyState="closed",this.emit("close")}},{"component-emitter":12,"engine.io-parser":17}],5:[function(t,e,r){(function(e){function n(t){var r=!1,n=!1,a=!1!==t.jsonp;if(e.location){var c="https:"==location.protocol,p=location.port;p||(p=c?443:80),r=t.hostname!=location.hostname||p!=t.port,n=t.secure!=c}if(t.xdomain=r,t.xscheme=n,"open"in new o(t)&&!t.forceJSONP)return new i(t);if(!a)throw new Error("JSONP disabled");return new s(t)}var o=t("xmlhttprequest"),i=t("./polling-xhr"),s=t("./polling-jsonp"),a=t("./websocket");r.polling=n,r.websocket=a}).call(this,"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./polling-jsonp":6,"./polling-xhr":7,"./websocket":9,xmlhttprequest:10}],6:[function(t,e,r){(function(r){function n(){}function o(t){i.call(this,t),this.query=this.query||{},a||(r.___eio||(r.___eio=[]),a=r.___eio),this.index=a.length;var e=this;a.push(function(t){e.onData(t)}),this.query.j=this.index,r.document&&r.addEventListener&&r.addEventListener("beforeunload",function(){e.script&&(e.script.onerror=n)},!1)}var i=t("./polling"),s=t("component-inherit");e.exports=o;var a,c=/\n/g,p=/\\n/g;s(o,i),o.prototype.supportsBinary=!1,o.prototype.doClose=function(){this.script&&(this.script.parentNode.removeChild(this.script),this.script=null),this.form&&(this.form.parentNode.removeChild(this.form),this.form=null,this.iframe=null),i.prototype.doClose.call(this)},o.prototype.doPoll=function(){var t=this,e=document.createElement("script");this.script&&(this.script.parentNode.removeChild(this.script),this.script=null),e.async=!0,e.src=this.uri(),e.onerror=function(e){t.onError("jsonp poll error",e)};var r=document.getElementsByTagName("script")[0];r.parentNode.insertBefore(e,r),this.script=e,"undefined"!=typeof navigator&&/gecko/i.test(navigator.userAgent)&&setTimeout(function(){var t=document.createElement("iframe");document.body.appendChild(t),document.body.removeChild(t)},100)},o.prototype.doWrite=function(t,e){function r(){n(),e()}function n(){if(o.iframe)try{o.form.removeChild(o.iframe)}catch(t){o.onError("jsonp polling iframe removal error",t)}try{var t='<iframe src="javascript:0" name="'+o.iframeId+'">';i=document.createElement(t)}catch(t){i=document.createElement("iframe"),i.name=o.iframeId,i.src="javascript:0"}i.id=o.iframeId,o.form.appendChild(i),o.iframe=i}var o=this;if(!this.form){var i,s=document.createElement("form"),a=document.createElement("textarea"),u=this.iframeId="eio_iframe_"+this.index;s.className="socketio",s.style.position="absolute",s.style.top="-1000px",s.style.left="-1000px",s.target=u,s.method="POST",s.setAttribute("accept-charset","utf-8"),a.name="d",s.appendChild(a),document.body.appendChild(s),this.form=s,this.area=a}this.form.action=this.uri(),n(),t=t.replace(p,"\\\n"),this.area.value=t.replace(c,"\\n");try{this.form.submit()}catch(t){}this.iframe.attachEvent?this.iframe.onreadystatechange=function(){"complete"==o.iframe.readyState&&r()}:this.iframe.onload=r}}).call(this,"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./polling":8,"component-inherit":13}],7:[function(t,e,r){(function(r){function n(){}function o(t){if(c.call(this,t),r.location){var e="https:"==location.protocol,n=location.port;n||(n=e?443:80),this.xd=t.hostname!=r.location.hostname||n!=t.port,this.xs=t.secure!=e}}function i(t){this.method=t.method||"GET",this.uri=t.uri,this.xd=!!t.xd,this.xs=!!t.xs,this.async=!1!==t.async,this.data=void 0!=t.data?t.data:null,this.agent=t.agent,this.isBinary=t.isBinary,this.supportsBinary=t.supportsBinary,this.enablesXDR=t.enablesXDR,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.create()}function s(){for(var t in i.requests)i.requests.hasOwnProperty(t)&&i.requests[t].abort()}var a=t("xmlhttprequest"),c=t("./polling"),p=t("component-emitter"),u=t("component-inherit"),h=t("debug")("engine.io-client:polling-xhr");e.exports=o,e.exports.Request=i,u(o,c),o.prototype.supportsBinary=!0,o.prototype.request=function(t){return t=t||{},t.uri=this.uri(),t.xd=this.xd,t.xs=this.xs,t.agent=this.agent||!1,t.supportsBinary=this.supportsBinary,t.enablesXDR=this.enablesXDR,t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized,new i(t)},o.prototype.doWrite=function(t,e){var r="string"!=typeof t&&void 0!==t,n=this.request({method:"POST",data:t,isBinary:r}),o=this;n.on("success",e),n.on("error",function(t){o.onError("xhr post error",t)}),this.sendXhr=n},o.prototype.doPoll=function(){h("xhr poll");var t=this.request(),e=this;t.on("data",function(t){e.onData(t)}),t.on("error",function(t){e.onError("xhr poll error",t)}),this.pollXhr=t},p(i.prototype),i.prototype.create=function(){var t={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized;var e=this.xhr=new a(t),n=this;try{if(h("xhr open %s: %s",this.method,this.uri),e.open(this.method,this.uri,this.async),this.supportsBinary&&(e.responseType="arraybuffer"),"POST"==this.method)try{this.isBinary?e.setRequestHeader("Content-type","application/octet-stream"):e.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(t){}"withCredentials"in e&&(e.withCredentials=!0),this.hasXDR()?(e.onload=function(){n.onLoad()},e.onerror=function(){n.onError(e.responseText)}):e.onreadystatechange=function(){4==e.readyState&&(200==e.status||1223==e.status?n.onLoad():setTimeout(function(){n.onError(e.status)},0))},h("xhr data %s",this.data),e.send(this.data)}catch(t){return void setTimeout(function(){n.onError(t)},0)}r.document&&(this.index=i.requestsCount++,i.requests[this.index]=this)},i.prototype.onSuccess=function(){this.emit("success"),this.cleanup()},i.prototype.onData=function(t){this.emit("data",t),this.onSuccess()},i.prototype.onError=function(t){this.emit("error",t),this.cleanup(!0)},i.prototype.cleanup=function(t){if(void 0!==this.xhr&&null!==this.xhr){if(this.hasXDR()?this.xhr.onload=this.xhr.onerror=n:this.xhr.onreadystatechange=n,t)try{this.xhr.abort()}catch(t){}r.document&&delete i.requests[this.index],this.xhr=null}},i.prototype.onLoad=function(){var t;try{var e;try{e=this.xhr.getResponseHeader("Content-Type").split(";")[0]}catch(t){}t="application/octet-stream"===e?this.xhr.response:this.supportsBinary?"ok":this.xhr.responseText}catch(t){this.onError(t)}null!=t&&this.onData(t)},i.prototype.hasXDR=function(){return void 0!==r.XDomainRequest&&!this.xs&&this.enablesXDR},i.prototype.abort=function(){this.cleanup()},r.document&&(i.requestsCount=0,i.requests={},r.attachEvent?r.attachEvent("onunload",s):r.addEventListener&&r.addEventListener("beforeunload",s,!1))}).call(this,"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./polling":8,"component-emitter":12,"component-inherit":13,debug:14,xmlhttprequest:10}],8:[function(t,e,r){function n(t){var e=t&&t.forceBase64;p&&!e||(this.supportsBinary=!1),o.call(this,t)}var o=t("../transport"),i=t("parseqs"),s=t("engine.io-parser"),a=t("component-inherit"),c=t("debug")("engine.io-client:polling");e.exports=n;var p=function(){return null!=new(t("xmlhttprequest"))({xdomain:!1}).responseType}();a(n,o),n.prototype.name="polling",n.prototype.doOpen=function(){this.poll()},n.prototype.pause=function(t){function e(){c("paused"),r.readyState="paused",t()}var r=this;if(this.readyState="pausing",this.polling||!this.writable){var n=0;this.polling&&(c("we are currently polling - waiting to pause"),n++,this.once("pollComplete",function(){c("pre-pause polling complete"),--n||e()})),this.writable||(c("we are currently writing - waiting to pause"),n++,this.once("drain",function(){c("pre-pause writing complete"),--n||e()}))}else e()},n.prototype.poll=function(){c("polling"),this.polling=!0,this.doPoll(),this.emit("poll")},n.prototype.onData=function(t){var e=this;c("polling got data %s",t);var r=function(t,r,n){if("opening"==e.readyState&&e.onOpen(),"close"==t.type)return e.onClose(),!1;e.onPacket(t)};s.decodePayload(t,this.socket.binaryType,r),"closed"!=this.readyState&&(this.polling=!1,this.emit("pollComplete"),"open"==this.readyState?this.poll():c('ignoring poll - transport state "%s"',this.readyState))},n.prototype.doClose=function(){function t(){c("writing close packet"),e.write([{type:"close"}])}var e=this;"open"==this.readyState?(c("transport open - closing"),t()):(c("transport not open - deferring 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o=t("../transport"),i=t("engine.io-parser"),s=t("parseqs"),a=t("component-inherit"),c=t("debug")("engine.io-client:websocket"),p=t("ws");e.exports=n,a(n,o),n.prototype.name="websocket",n.prototype.supportsBinary=!0,n.prototype.doOpen=function(){if(this.check()){var t=this.uri(),e={agent:this.agent};e.pfx=this.pfx,e.key=this.key,e.passphrase=this.passphrase,e.cert=this.cert,e.ca=this.ca,e.ciphers=this.ciphers,e.rejectUnauthorized=this.rejectUnauthorized,this.ws=new p(t,void 0,e),void 0===this.ws.binaryType&&(this.supportsBinary=!1),this.ws.binaryType="arraybuffer",this.addEventListeners()}},n.prototype.addEventListeners=function(){var t=this;this.ws.onopen=function(){t.onOpen()},this.ws.onclose=function(){t.onClose()},this.ws.onmessage=function(e){t.onData(e.data)},this.ws.onerror=function(e){t.onError("websocket error",e)}},"undefined"!=typeof navigator&&/iPad|iPhone|iPod/i.test(navigator.userAgent)&&(n.prototype.onData=function(t){var 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